210202121210100 has 36 divisors (see below), whose sum is σ = 608184804035424. Its totient is φ = 56053898989280.

The previous prime is 210202121210063. The next prime is 210202121210111. The reversal of 210202121210100 is 1012121202012.

It is a super-2 number, since 2×210202121210100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 210202121210100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350336868384 + ... + 350336868983.

Almost surely, 2^{210202121210100} is an apocalyptic number.

210202121210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210202121210100 is an abundant number, since it is smaller than the sum of its proper divisors (397982682825324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210202121210100 is a wasteful number, since it uses less digits than its factorization.

210202121210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700673737384 (or 700673737377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210202121210100 its reverse (1012121202012), we get a palindrome (211214242412112).

The spelling of 210202121210100 in words is "two hundred ten trillion, two hundred two billion, one hundred twenty-one million, two hundred ten thousand, one hundred".